Flu is usually a wintertime virus, peaking in January or February.
But this year, flu cases are on the rise all around the country, even though it is spring, according to the Centers for Disease Control and Prevention.
From the Here & Now contributor network, WBUR's Carey Goldberg reports.
- Carey Goldberg, host of WBUR's CommonHealth blog. The blog tweets @commonhealth.
This segment aired on March 23, 2016.